feat: add LanceDB vector store with upsert, delete, and search

sample-data/Default/Journal/2026/04/2026-04-02.md

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+#DayInShort: I am not well
+#physicalhealth: Throat infection, cough, body pain, eye pain.
+#mentalhealth: Affected by physical health!
+#work: Did some analysis work.
+#Food:
+	#Breakfast: Idli
+	#Lunch: Soup
+	#Dinner: Bonda
+#Relations: [[Person/VJ]], [[Person/Swathi Appa]].
+#finance: Spent some money!
+#movie: Yet to start
+#selfimprovement: Tried [[Product/Gemma 4]]! It is good.

sample-data/Default/Journal/2026/04/2026-04-05.md

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+#DayInShort:  Half baked day
+#physicalhealth: For some reason, all of us feel dead tired today
+#mentalhealth: The tax thing is burning in my mind. I don't know why I am not acting on it.
+#work: Sunday
+#Food:
+	#Breakfast: nothing
+	#Lunch: nothing
+	#Dinner: One aloo paratha
+#Relations: mostly solitude
+#finance: ordered book and cell cover for [[Person/latha]]
+#movie: not yet. but I need to continue the [[MoviesShows/Midnight Mass]]
+#selfimprovement: Installed [[Product/OpenClaw]].

sample-data/Default/Journal/2026/04/2026-04-06.md

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+#DayInShort: Half baked day. I need to focus more.
+#physicalhealth: BAckpain
+#mentalhealth: My days are counted
+#work: Mid
+#Food:
+	#Breakfast: A lil bit of seva and puliseri
+	#Lunch: none
+	#Dinner: half aloo paratha
+#Relations: went to [[Org/walgreens]] with vj
+#finance: spent $30 in [[Org/walgreens]]
+#movie: none
+#selfimprovement: nothing. I am stagnating. need to do something interesting.

sample-data/Default/Journal/2026/04/2026-04-07.md

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+#DayInShort: Half baked day!
+#physicalhealth: It is fine. I slept for an hour in the evening.
+#mentalhealth: Kind of ok.
+#work: I am getting a direction now, on where to focus. that is a good sign, I would say.
+#Food:
+	#Breakfast: nothing
+	#Lunch: rice
+	#Dinner: tea
+#Relations: [[Person/VJ]], [[Person/Inba]], [[Person/Swathi]], [[Person/Swathi's parents]]
+#finance: Bought a book stand
+#movie: nothing yet. but will continue [[MoviesShows/Midnight mass]].
+#selfimprovement: [[Org/Google]] [[Concept/AI]].

sample-data/Default/Journal/2026/04/2026-04-08.md

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+#DayInShort: I think I am getting back into the groove. I was able to focus on what is important today - although not for long.
+#physicalhealth: I am ok
+#mentalhealth: Good
+#work: Productive day, attended and contributed to a few fruitful discussions
+#Food:
+	#Breakfast: none
+	#Lunch: soup
+	#Dinner: chapati
+#Relations: almost within household
+#finance: nothing
+#movie: [[MoviesShows/Midnight Mass]]
+#selfimprovement: Nothing new. Just burning some tokens!

sample-data/Default/Journal/2026/04/2026-04-09.md

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+#DayInShort: It was a mixed bag. I unnecessarily shouted at [[Person/Latha]]. Poor thing! I dont deserve her!
+#physicalhealth: I am ok
+#mentalhealth: Hormones are firing left right center! I am too irritable.
+#work: I was able to do some quality work.
+#Food:
+ #Breakfast: None
+ #Lunch: Chapati + Sambar
+ #Dinner: Idiyappam + Stew
+#Relations: A sore relation with [[Person/latha]] today. It was mostly because she is not focusing on [[Person/Bala]]. I easily get irritated by that kind of a lethargic attitude. Also, I need to keep a bit of distance from [[Person/VJ]] and family. I think I am creating a lot of dependency on them.
+#finance: Nothing spent today
+#movie: 
+ - Finishing [[MoviesShows/Midnight Mass]] tonight (Finished)
+ - [[MoviesShows/Masthishka Maranam]]: A Frankenbiting of Simon's Memories #[[Brand/netflix]]
+#selfimprovement: I Wired my [[Product/obsidian]] to [[Product/openclaw]]!! It is fun!

sample-data/Default/Journal/2026/04/2026-04-10.md

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+#DayInShort: A productive day marked by crushing a massive 82-page [[Concept/HEDIS]] update and attending [[Concept/AI]] training with [[Person/VJ]]. Despite some physical struggles with back pain and a headache, and a heavy financial hit from income taxes, ended the day feeling accomplished and working on an [[Product/Obsidian]]-RAG for [[Product/OpenClaw]].
+#physicalhealth: Lower back pain. Wore eye-glasses for a headache.
+#mentalhealth: Feel OK, felt somewhat accomplished. 
+#work: Singlehandedly completed the [[Concept/HEDIS]] updates—a massive 82-page move to connections.
+#Food:
+	#Breakfast: None
+	#Lunch: Chapati
+	#Dinner: None
+#Relations: Attended [[Concept/AI]] training with [[Person/VJ]]. Went to [[Org/Costco]].
+#finance: Spent $85 at [[Org/Costco]]. Charged $3000 for income tax. Current balance: -$450.
+#movie:
+- [[MoviesShows/Trust Me - Fake Prophet]] (Finished)
+#selfimprovement: Building an [[Product/obsidian]]-rag mechanism for [[Product/OpenClaw]].

sample-data/Default/Journal/2026/04/2026-04-11.md

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+#DayInShort: Spent the day breaking my head over an [[Product/OpenClaw]] plugin. Stressed about finances.
+#physicalhealth: Unable to sleep, physically drained.
+#mentalhealth: Stressed out due to money problems.
+#work: Breaking head on [[Product/openclaw]] plugin.
+#Food:
+	#Breakfast: Puttu and kadala
+	#Lunch: 
+	#Dinner: Vada from VJ's (8pm)
+#Relations: [[Person/Vinay]], [[Person/Usha]], and [[Person/Rakshi]] visited. [[Person/Swathi]] also gave a brief visit.
+#finance: [[Org/IRS]] debited $3000; account is in negative balance.
+#movie: None
+#selfimprovement: [[Product/OpenClaw]] plugin development.

sample-data/Default/Journal/2026/04/2026-04-12.md

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+#DayInShort:
+#physicalhealth:
+#mentalhealth:
+#work:
+#Food:
+	#Breakfast:
+	#Lunch:
+	#Dinner:
+#Relations:
+#finance:
+#movie:
+#selfimprovement: